Archipterygium (or ancient fin) is the concept of a primitive limb from which the limbs of tetrapod animals evolved. The idea was proposed by Carl Gegenbaur in 1878, sometimes termed the gill septum hypothesis and it consisted of a series of rays, one ray large with the remaining small ones attached to the sides of the large one. Gegenbaur based this idea on the fin of Ceratodus and its similarity to the gill-region in Elasmobranchs. He suggested that the pentadactyl limb of modern tetrapods was derived from one side of the archipterygium. Thomas Huxley examined the idea and argued against it. He suggested that the tetrapod limb or cheiropterygium differed in its origins from that of the lungfish and that the two may have diversified from a true ancestral archipterygium.[1][2] An alternate origin for tetrapod limbs was identified in the lateral fins by Francis Balfour.[3] These were followed by several other modified hypotheses.[4] Although the idea of the archipterygium is outdated, it was one of the first major applications of evolutionary morphology and development.[5][6][7]
^Stephens, Trent D.; Strecker, Teresa R. (1985). "Radial Condensation in the Axis of the Evolving Limb". Evolution. 39 (5): 1159–1163. doi:10.2307/2408744. JSTOR 2408744. PMID 28561510.
^Hall, Brian K., ed. (2008). Fins into Limbs: Evolution, Development, and Transformation. University of Chicago Press.
^Kerr, J. Graham (1923). "The evolutionary history of the vertebrate limb". Science Progress in the Twentieth Century (1919-1933). 18 (70): 257–266.
^Coates, Michael I. (1994-01-01). "The origin of vertebrate limbs" (PDF). Development. 1994 (Supplement): 169–180. doi:10.1242/dev.1994.Supplement.169.
^Cole, Nicholas J.; Currie, Peter D. (2007). "Insights from sharks: Evolutionary and developmental models of fin development". Developmental Dynamics. 236 (9): 2421–2431. doi:10.1002/dvdy.21268. PMID 17676641. S2CID 40763215.
^Pieretti, Joyce; Gehrke, Andrew R.; Schneider, Igor; Adachi, Noritaka; Nakamura, Tetsuya; Shubin, Neil H. (2015). "Organogenesis in deep time: A problem in genomics, development, and paleontology". Proceedings of the National Academy of Sciences. 112 (16): 4871–4876. Bibcode:2015PNAS..112.4871P. doi:10.1073/pnas.1403665112. PMC4413340. PMID 25901307.
^Coates, M (2003). "The Evolution of Paired Fins". Theory in Biosciences. 122 (2–3): 266–287. doi:10.1078/1431-7613-00087.
April 12, 2024
archipterygium, theory, archipterygium, ancient, concept, primitive, limb, from, which, limbs, tetrapod, animals, evolved, idea, proposed, carl, gegenbaur, 1878, sometimes, termed, gill, septum, hypothesis, consisted, series, rays, large, with, remaining, smal. Archipterygium or ancient fin is the concept of a primitive limb from which the limbs of tetrapod animals evolved The idea was proposed by Carl Gegenbaur in 1878 sometimes termed the gill septum hypothesis and it consisted of a series of rays one ray large with the remaining small ones attached to the sides of the large one Gegenbaur based this idea on the fin of Ceratodus and its similarity to the gill region in Elasmobranchs He suggested that the pentadactyl limb of modern tetrapods was derived from one side of the archipterygium Thomas Huxley examined the idea and argued against it He suggested that the tetrapod limb or cheiropterygium differed in its origins from that of the lungfish and that the two may have diversified from a true ancestral archipterygium 1 2 An alternate origin for tetrapod limbs was identified in the lateral fins by Francis Balfour 3 These were followed by several other modified hypotheses 4 Although the idea of the archipterygium is outdated it was one of the first major applications of evolutionary morphology and development 5 6 7 See also editLimb developmentReferences edit Stephens Trent D Strecker Teresa R 1985 Radial Condensation in the Axis of the Evolving Limb Evolution 39 5 1159 1163 doi 10 2307 2408744 JSTOR 2408744 PMID 28561510 Hall Brian K ed 2008 Fins into Limbs Evolution Development and Transformation University of Chicago Press Kerr J Graham 1923 The evolutionary history of the vertebrate limb Science Progress in the Twentieth Century 1919 1933 18 70 257 266 Coates Michael I 1994 01 01 The origin of vertebrate limbs PDF Development 1994 Supplement 169 180 doi 10 1242 dev 1994 Supplement 169 Cole Nicholas J Currie Peter D 2007 Insights from sharks Evolutionary and developmental models of fin development Developmental Dynamics 236 9 2421 2431 doi 10 1002 dvdy 21268 PMID 17676641 S2CID 40763215 Pieretti Joyce Gehrke Andrew R Schneider Igor Adachi Noritaka Nakamura Tetsuya Shubin Neil H 2015 Organogenesis in deep time A problem in genomics development and paleontology Proceedings of the National Academy of Sciences 112 16 4871 4876 Bibcode 2015PNAS 112 4871P doi 10 1073 pnas 1403665112 PMC 4413340 PMID 25901307 Coates M 2003 The Evolution of Paired Fins Theory in Biosciences 122 2 3 266 287 doi 10 1078 1431 7613 00087 Retrieved from https en wikipedia org w index php title Archipterygium theory amp oldid 1191386933, wikipedia, wiki, book, books, library,
